There are patches on the tongue’s surface called missing papillae with geographic tongue, and they appear as smooth red island swith slightly raised borders.
These patches or lesions usually make the tongue have a map like or geographic look. When the lesions heal in one area, they will migrate to another part. This is why the geographic tongue is also called benign migratory glossitis.
Though it might be quite alarming to have a geographic tongue, it doesn’t cause other health conditions and has no linkwith cancer or an infection. However, having a geographic tongue maybe uncomfortable and increase your sensitivity to substances like spices, sweets, and salt.